
// ToolsLib Project

/* ToolsLib library for RusRoute firewall and other projects of
 * Andrey A. Moiseenko / IE Moiseenko A.A. (Russia)
 * e-mail: support@maasoftware.ru, maa2002@mail.ru
 * web: http://maasoftware.ru, http://maasoftware.com, http://maasoft.ru, http://maasoft.org
 * Author's full name: Andrey Alekseevitch Moiseenko
 * (russian name: Моисеенко Андрей Алексеевич)
 */

// ToolsLib/Refs.cpp

/* Copyright (C) 2002-2024 Andrey A. Moiseenko (support@maasoftware.ru)
 * All rights reserved.
 *
 * This library contains cross-platform class for simple reference count
 * implementation.
 * The library implementation written
 * by Andrey A. Moiseenko (support@maasoftware.ru).
 * This library and applications are
 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
 * as long as the following conditions are aheared to.
 *
 * Copyright remains Andrey A. Moiseenko, and as such any Copyright notices in
 * the code are not to be removed.  If this code is used in a product,
 * Andrey A. Moiseenko should be given attribution as the author of the parts used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by Andrey A. Moiseenko (support@maasoftware.ru)
 *
 * THIS SOFTWARE IS PROVIDED BY ANDREY A. MOISEENKO ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include "perm.h"
#include "temp.h"

//------------------------------------------------------------------------------
// class CMaaReference
//------------------------------------------------------------------------------
/*
CMaaReference::CMaaReference() noexcept
:   m_lRefs ( 1 )
{
}

CMaaReference::~CMaaReference () noexcept
{
}

_bool CMaaReference::IsSingleOwner () const noexcept
{
    return m_lRefs == 1L;
}
*/

TOOLSLIB_REFS_TYPE CMaaReference::AddRef () noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    return ::InterlockedIncrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    //AtomicLock(); // AtomicLock() and std::atomic<TOOLSLIB_REFS_TYPE> have the same performance under Linux Debian 10 x64
    const TOOLSLIB_REFS_TYPE r = ++m_lRefs;
    //AtomicUnLock();
    aLocker_UnLock;
    return r;
#endif
#else
    return ++m_lRefs;
#endif
}

TOOLSLIB_REFS_TYPE CMaaReference::Release () noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    const TOOLSLIB_REFS_TYPE r = ::InterlockedDecrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    const TOOLSLIB_REFS_TYPE r = --m_lRefs;
    aLocker_UnLock;
#endif
#else
    const TOOLSLIB_REFS_TYPE r = --m_lRefs;
#endif
    if  (!r)
    {
#ifdef NEW_DELETE_PRINTF
        printf("Release - delete %p\n", this); // !NEW
#endif
        delete this;
        return 0;
    }
    return r;
}

#ifdef __BORLANDC__
#pragma argsused
#endif
void CMaaReference::CheckImplementation ( const CMaaReference * pRef )
{
#if defined(_WIN32) || defined(__unix__)
    if  ( pRef == nullptr )
    {
        throw XTOOStatus ( e_INVALID_IMPLEMENTATION/*XTOOStatus::eInvalidImplementation*/ );
    }
#endif
}

//------------------------------------------------------------------------------
// class CMaaManualReference
//------------------------------------------------------------------------------
/*
CMaaManualReference::CMaaManualReference() noexcept
:   m_lRefs(1)
{
}

CMaaManualReference::~CMaaManualReference() noexcept
{
}

_bool CMaaManualReference::IsSingleOwner() const noexcept
{
    return m_lRefs == 1L;
}
*/

TOOLSLIB_REFS_TYPE CMaaManualReference::AddRef() noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    return ::InterlockedIncrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    const TOOLSLIB_REFS_TYPE r = ++m_lRefs;
    aLocker_UnLock;
    return r;
#endif
#else
    return ++m_lRefs;
#endif
}

TOOLSLIB_REFS_TYPE CMaaManualReference::Release() noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    const TOOLSLIB_REFS_TYPE r = ::InterlockedDecrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    const TOOLSLIB_REFS_TYPE r = --m_lRefs;
    aLocker_UnLock;
#endif
    return r;
#else
    return --m_lRefs;
#endif
}

#ifdef __BORLANDC__
#pragma argsused
#endif
void CMaaManualReference::CheckImplementation(const CMaaManualReference* pRef)
{
#if defined(_WIN32) || defined(__unix__)
    if  (pRef == nullptr)
    {
        throw XTOOStatus(e_INVALID_IMPLEMENTATION/*XTOOStatus::eInvalidImplementation*/);
    }
#endif
}

//------------------------------------------------------------------------------
// class CMaaManualReferenceDLink
//------------------------------------------------------------------------------
/*
CMaaManualReferenceDLink::CMaaManualReferenceDLink() noexcept
:   m_lRefs(1)
{
}

CMaaManualReferenceDLink::~CMaaManualReferenceDLink() noexcept
{
}

_bool CMaaManualReferenceDLink::IsSingleOwner() const noexcept
{
    return m_lRefs == 1L;
}
*/

TOOLSLIB_REFS_TYPE CMaaManualReferenceDLink::AddRef() noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    return ::InterlockedIncrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    const TOOLSLIB_REFS_TYPE r = ++m_lRefs;
    aLocker_UnLock;
    return r;
#endif
#else
    return ++m_lRefs;
#endif
}

TOOLSLIB_REFS_TYPE CMaaManualReferenceDLink::Release() noexcept
{
#ifdef MTX_INTERLOCKS
#ifdef _WIN32
    const TOOLSLIB_REFS_TYPE r = ::InterlockedDecrement(&m_lRefs);
#else
    CMaaWin32Locker_aLocker_gLock_Atomic;
    aLocker_Lock;
    const TOOLSLIB_REFS_TYPE r = --m_lRefs;
    aLocker_UnLock;
#endif
    return r;
#else
    return --m_lRefs;
#endif
}

#ifdef __BORLANDC__
#pragma argsused
#endif
void CMaaManualReferenceDLink::CheckImplementation(const CMaaManualReferenceDLink* pRef)
{
#if defined(_WIN32) || defined(__unix__)
    if  (pRef == nullptr)
    {
        throw XTOOStatus(e_INVALID_IMPLEMENTATION/*XTOOStatus::eInvalidImplementation*/);
    }
#endif
}


//==============================================================================
